Ice shaver



Sept. 18, 1934. R HARMON 1,974,025

ICE SHAVER Filed May 24, 1932 2 Sheets-Sheet 1 @Wtomwi Sept. 18, 1934,,

K. R. HARMON ICE SHAVER mw W I 1 n We m w m n m a Q m QhH m 1 W NH m wfi A H u. 2 WW Q mm w k. M m Q R m t l ww 3 i \Q Q kw l; m x m PatentedSept. 18, 1934 STATES PATENT This invention aims to provide anice-shaving machine characterized by the following features: readyaccess to the shaving blades, through the instrumentality of a movablymounted delivery chute: a delivery chute which will open automaticallyand release the shaved ice, when clogged by shaved ice: a support forthe rotary cutter, which is mounted in one side plate of the casingonly: improved bearing means for the shaft of 19 the rotary cutter:novel means for lubricating the shaft of the rotary cutter, withoutcontaminating the shaved ice by lubricating oil: other objects being toimprove generally, and to enhance, the utility of .devices of that typeto 19 which the present invention appertains.

A preferred form has been shown, but is to be regarded as anillustrative material embodiment of the invention only, since amechanic, working within the scope of what is claimed, may depart fromthe structure shown, without placing the utility of the invention injeopardy, or departing from the spirit of the invention.

In the accompanying drawings:

Fig. 1 shows in elevation, an ice shaver constructed in accordance withthe invention;

Fig. 2 is an elevation wherein the device is viewed at right angles tothe showing of Fig. 1;

Fig. 3 is a section on the line 3-3 of Fig. 2;

Fig. 4 is a section on the line 4-4 of Fig. 3;

Fig. 5 is a section on the line 5-5 of Fig. 2.

The device forming the subject matter of this application is made ofmetal. It includes a casing, which, as a whole, is marked by theletterC.

The casing C comprises a first side plate 1 5 and a. second side plate2, having outstanding marginal flanges 3 connected by securing ele-.

ments 4, such as rivets.

The first side plate 1 hasan outstanding angle bracket 5, by which thecasing C is supported. The first side plate 1 is provided at its centerwith an outwardly projecting tubular bearing 6 having alongitudinal'bore 7. In the inner end of the bearing 6 and in the sideplate 1 there is a recess 8.

The bottom part of the bearing 6 is connected to the side plate 1 by anenlargement 9, in which thereis an oil pocket 10, provided on its innerside with a vertical wall 11. The oil pocket 10 forms the bottom part-ofthe recess 8. The upper end of a downwardly inclined pipe or drainconduit 12 is connected to the enlargement 9 and communicates with theoil pocket 10. The outer end of the pipe 12 is mounted in the verticalflange of the angle bracket Son the side plate 1.

A bushing 14, which may bemade of bronze or any other suitable material,is secured in the bore '7 of the bearing 6 and extends inwardly to thebase of the recess 8. Y A bushing 15, made of bronze or any othersuitable material, is secured in the outer end of the bore 7 of the 50bearing 6, and has a laterally enlarged head 16 engaged with the outerend of the bearing 5. On the head 16 of the bushing 15, a cap 17 isthreaded, or held otherwise, removably.

A shaft 18 is journaled for rotation in the bushings 14 and 15'. Theinner end of the shaft 18 is tapered, as shown at 19. A nut 20 isthreaded on the outer end of the part 19 and is housed in an offset 21on the second side plate 2. The outer end of the shaft 18 is reduced, asshown at 22, and on the reduced end of the shaft is threaded an innernut 23 and a lock nut 24. A lock washer 25 is interposed between thenuts 23 and 24. The nuts 23 and 24 and the lock washer 25 are housedwithin the cap 17. The cap 17 may be taken off to get at the nuts 23 and24.

, A rotor 26, in the form of a disk, is disposed in the casing C, andhas a hub 27 held on the tapered end 19 of the shaft 18 by the nut- 20.The inner end of the hub 2'7 of the rotor 26 abuts against the shoulderin the bearing 6, formed by the base of the recess 8. The hub 27 of therotor 26, and the nuts 23 and 24, hold the shaft 18 against movingendwise, and keep therotor 26 spaced from the side plates 1 and 2 of thecasing C.

There are oil holes 28 on the upper side of the bearing 6, these oilholes communicating Withreduced oil holes 29 in the bushings 14 and so15, There is a space 30 between the inner ends of the bushings 14 and15. The oil holes 28, of course, are typical of any suitable lubricatinginstrumentality. The oil introduced into the holes 28 passes through theholes 29 and lubricates the shaft 18. The space 30 between the innerends of the bushings 14 and 15 constitutes an oil reservoir. The oilthat works toward the hub 27 of the rotor 26 finds its way into the oilpocket 10, because the inner end of the hub 2'7 and the shoulder at thebase of the recess 8 are directly above the oil pocket 10. From the oilpocket 10, the oil drip runs away through the pipe 12. It will be seenthat surplus oil is intercepted. by the pocket 10, before the oil canfind its way withinthe casing C and contaminate the ice which is beingshaved.

The rotor 26 has a peripheral gear 31 meshing with a pinion 32 securedto a shaft 33 journaled in an offset housing 34, to which is secured,externally of the casing C, an electric motor 35, of which the shaft 33forms a part. Any other means may be supplied for imparting rotation tothe rotor 26.

The means whereby the ice is out immediately, may be of any desiredkind. If preferred, openings 36 may be formed in the rotor 26, and toone edge of each opening is secured a knife 37, the knives havingtransverse slots 38, receiving securing elements 39 which attach theknives to the rotor 26, so that the knives can be adjusted in and outwith respect to the second side plate I 1, as Fig. 3 will show. Theknives 37 are disposed at an acute angle to the rotor 26.

An ice hopper 40 is formed integrally with the side plate 1 of thecasing C and with the bearing 6. The ice hopper 40 is open at its upperend, and on its inner side, throughout its length, it opens through theside plate 1, against the rotor 26. The bottom of the ice hopper 40slopes downwardly and inwardly, as shown in Fig. 1, so that the ice inthe hopper will be held by gravity against the rotor 26 in the path ofthe knives 37, as the ice tends to slide downwardly along the bottom ofthe hopper.

Opposite to the hopper 40, the side plate 2 of the casing C is providedwith an opening 41, covered by a substantially vertical, troughshapedoutlet chute 42 which is open at its upper and lower ends. The chute 42extends downwardly a little way beyond the lower edge of the casing C,and the side plate 1 of the casing has a corresponding extension 43,shown in Fig. 1, to cooperate with the downwardly extended lower part ofthe chute 42.

By means of hinges 44, the chute 42 is connected, along its inner edge,with the side plate 2 of the casing C, to swing horizontally. The outeredge of the chute 42 is held against the side plate 2, in closedrelation to the opening 41, by a releasable latch, which may be of anydesired construction. The releasable latch may comprise outstanding jaws45 on the side plate 2, a finger 46, rigidly connected to the chute 42,being received between the fingers 46. The jaws 45 are stfif enough tohold the outlet chute 42 closed under all ordinary working conditions,but the jaws can yield, to release the finger 46, and permit the chute42 to open, under abnormal conditions, which will be describedhereinafter.

One of the main advantages of the device is that the shaft 18 is carriedentirely by the side plate 1, and is not supported in any way in theside plate 2. This construction facilitates assembly and repair and hasmany other advantages which will be appreciated readily by practicalusers of the article.

As to general operation, the ice is cast into the hopper 40, and theinclined bottom of the hopper carries the ice against one side of therotor 26. The rotor 26 is turned by means of the gear 31, the pinion 32,the shaft 33, and the motor 35 or any other instrumentality adapted forthe purpose in view. As the rotor 26 turns, the knives 37 shave the'ice,the ice passes through the openings 36 of the rotor 26, into the outletchute 42, the shaved ice dropping out of the lower end of the chute 42.

There are several reasons for mounting the outlet chute 42 hingedly, asshown at 44. One reason for doing this is to give ready access to theknives 37, in order that the knives may be adjusted, cleaned, or takenoif for sharpening or renewal. Another reason for hingedly-mounting theice chute 42, and holding it closed releasably by means of the latchmechanism shown at 45 and 46, is that sometimes the ice chute or outletchute 42 will clog up with ice, as the ice accumulates below the lowerend of the chute. As soon as there is an undesirable jam or pressureWithin the chute 42, the chute will open on its hinges 44, because ofthe resilient hold of the jaws 45 on the finger 46 of the chute.

The bearing shown in Fig. 5'affords a substantial support for the shaft18, even though the shaft is mounted only in the bearing 6, and not inthe side plate 2.

The oilsupplied from the holes 28 and 29, if

it works inwardly, past the bushing 14, will drip down into the oilpocket 10 and be carried away by the pipe 12, there being no fouling ofthe shaved ice in the casing C, by the oil drip.

Having thus described the invention, what is claimed is:

1. An ice-shaver comprising a casing having an inlet for the ice to beshaved, and an outlet for the shaved ice, the casing comprisingoppositely-disposed first and second side plates, the first side platehaving an outwardly projecting tubular bearing provided with a bore, thebearing being supplied at its inner end with a recess of larger diameterthan the bore, a bushing in the outer end of the bore and provided witha laterally-enlarged head engaging the outer end of the bearing, a shaftjournaled in the bushing, a securing device removably mounted on theouter end of the shaft and engaging the head of the bushing, a capcovering the securing device and removably mounted on the head of thebushing, a rotor in the casing and including a hub secured to the innerend of the shaft and engaging the hearing, within the recess, the huband the securing device constituting means for holding the shaft againstendwise movement, but for rotation, in the bearing, the inner end of theshaft being spaced from the second side plate, ice-shaving means carriedby the rotor, and means for rotating the rotor.

2. An ice-shaver comprising a casing having an inlet for the ice to beshaved, ice-shaving means within the casing, an outlet chute for shavedice, means for hinging the outlet chute upon the casing, and latchmechanism connecting the outlet chutewith the casing, to hold the outletchute closed with respect to the casing, said mechanism comprisinginterengaged parts which are automatically releasable, to permit theoutlet chute to open with respect to the casing, when there is abnormalpressure of shaved ice within the outlet chute.

3. An ice-shaver comprising a casing having an inlet for the ice to beshaved, and an out let for the shaved ice, an outstanding bracketcarried bythe casing and constituting means for supporting the casing, abearing on the casing, a shaft journaled in the bearing, a rotor in thecasing and carried by the shaft, a shaving device on the rotor andlocated within the casing, reservoir means for intercepting foreignmaterial moving along the shaft, said reservoir means being locatedwithin the casing, at the extreme end of the bearing, to interceptforeign material before the foreign material finds its way into thecasing, to contaminate the ice, a pipe external to the casing andconnected detachably to the reservoir means, the pipe constituting anoutlet for the foreign material in the reservoir means,

ifs

and the pipe being supported in the said bracket.

4. An ice-shaver comprising a casing having an inlet for the ice to beshaved, and an outlet for the shaved ice, a bearing on the casing, ashaft journaled in the bearing, a rotor in the casing and carried by theshaft, a shaving device on the rotor, and the casing being provided witha pocket for foreign material moving along the shaft, the pocket beinglocated within the casing and below the shaft, at the extreme inner endof the bearing, the upper portion of the pocket being in opencommunication with the interior of the casing, to admit air into thepocket, the pocket constituting means for intercepting foreign materialbefore the foreign material enters the casing and contaminates the ice,and a laterally extended drainage conduit of considerable length,communicating with the pocket.

5. An ice-shaver comprising a casing having an inlet for the ice to beshaved, and an outlet for the shaved ice, a bearing on the casing, ashaft journaled in the bearing, a rotor in the casing and carried by theshaft, a shaving device on the rotor, reservoir means located within thecasing and at the extreme inner end of the bearing for interceptingforeign material moving along the shaft, before the foreign materialfinds its way into the casing, to contaminate the ice, and a conduitconnected to the reservoir means and forming an outlet for the reservoirmeans.

6. An ice-shaver comprising a casing having an inlet for the ice to beshaved, and an outlet for the shaved ice, a bearing on the casing, thebearing being provided with a bore, and there being an enlarged recessat the inner end of the bore, the bearing having a pocket located in thecasing at the inner end of the recess, the pocket forming the bottom ofthe recess, the pocket having an upwardly extended wall spaced from theinner end of the recess, a shaft journaled in the bearing, a rotordisposed in the casing and including a hub extended into the recess andsecured to the shaft, the hub extending outwardly beyond the said wallof the pocket, so as to intercept foreign material moving along theshaft and direct the foreign material into the pocket, before theforeign material can enter the casing and contaminate the ice in thecasing, means for draining the pocket, and iceshaving means on therotor.

'7. An ice shaver comprising a casing having an inlet for the ice to beshaved, ice-shaving means within the casing, an outlet chute for shavedice, means for mounting the outlet chute hingedly at one side on thecasing, and releasable mechanism for holding the opposite side of theoutlet chute in closed position with respect to the casing, saidmechanism being releasable under pressure of accumulated shaved ice inthe outlet chute, to permit the outlet chute to open with respect to thecasing.

KENNETH R. HARMON.

